| unresolved(doubtful, vague, unsure) |
| unsafe(adjective, severe, delicate, uncertain, unstable) |
| unsettled(adjective, delicate, uncertain, unstable, doubtful) |
| unsound(delicate, uncertain, insecure, rugged, risky) |
| unstable(adjective, delicate, uncertain, nervous, doubtful) |
| unsteady(adjective, delicate, uncertain, unstable, doubtful) |
| unsure(adjective, delicate, uncertain, nervous, unstable) |
| untrustworthy(adjective, uncertain, nervous, doubtful, dubious) |
| untrusty(adjective, uncertain, nervous, doubtful, hesitant) |
| up for grabs(expression, adjective, idiom, uncertain, nervous) |
| up in the air(expression, idiom, uncertain, doubtful, vague) |
| vacillating(uncertain, nervous, doubtful, vague, insecure) |
| vague(uncertain, nervous, doubtful, worried, hesitant) |
| variable(doubtful, vague, changeable, unsure, erratic) |
| wager |
| wavering(uncertain, nervous, doubtful, vague, insecure) |
| wimpy(adjective, uncertain, nervous, doubtful, shaky) |
| Delphic(uncertain, nervous, worried, hesitant, insecure) |
| afloat |
| afraid(uncertain, nervous, worried, hesitant, insecure) |